P-129: IBM SAS 6Gb 3-Port PCIe2 x8 1.5GB Cache RAID Adapter.
The the manufacturer P-129 is a Battery-Backed Write Cache pack, designed for enterprise RAID controllers in enterprise servers. It provides backup power to the BBWC module during unexpected power loss, ensuring cached write data is safely committed to flash memory. This is a high-volume replacement part in TPM market as enterprise servers remain widely deployed.
This part is cataloged in the U.S. Government catalog under NSN 5330-00-155-4865, indicating validated use in U.S. government and defense logistics supply chains.
| material | COPPER CORE CONDUCTOR SINGLE CONDUCTOR |
| alignment_type | RIGID |
| conductor_form | STRANDED LOCATION NOT OTHERWISE SPECIFIED |
| overall_height | 0.8070 INCHES NOMINAL IN |
| overall_length | 3.750 INCHES NOMINAL IN |
| surface_finish | GROUND |
| special_features | BRONZE FERRULE ON ID OF ONE WASHER,WASHERS OVERLAP |
| style_designator | CLUTCH RELEASE, THRUST, LUBRICATED AND SEALED |
| termination_type | CONNECTOR PLUG BOTH ENDS SINGLE CONDUCTOR |
| precious_material | GOLD |
| lead_overall_length | 304.8 MILLIMETERS NOMINAL MM |
| round_conductor_size | 20 AWG SINGLE CONDUCTOR |
| NSN | 5330-00-155-4865 |